src/extension/internal/bitmap/levelChannel.cpp

   1 /*
   2  * Copyright (C) 2007 Authors:
   3  *   Christopher Brown <audiere@gmail.com>
   4  *   Ted Gould <ted@gould.cx>
   5  *
   6  * Released under GNU GPL, read the file 'COPYING' for more information
   7  */
   8
   9 #include "extension/effect.h"
  10 #include "extension/system.h"
  11
  12 #include "levelChannel.h"
  13
  14 namespace Inkscape {
  15 namespace Extension {
  16 namespace Internal {
  17 namespace Bitmap {
  18
  19 void
  20 LevelChannel::applyEffect(Magick::Image* image) {
  21         Magick::ChannelType channel = Magick::UndefinedChannel;
  22         if (!strcmp(_channelName,      "Red Channel"))          channel = Magick::RedChannel;
  23         else if (!strcmp(_channelName, "Green Channel"))        channel = Magick::GreenChannel;
  24         else if (!strcmp(_channelName, "Blue Channel"))         channel = Magick::BlueChannel;
  25         else if (!strcmp(_channelName, "Cyan Channel"))         channel = Magick::CyanChannel;
  26         else if (!strcmp(_channelName, "Magenta Channel"))      channel = Magick::MagentaChannel;
  27         else if (!strcmp(_channelName, "Yellow Channel"))       channel = Magick::YellowChannel;
  28         else if (!strcmp(_channelName, "Black Channel"))        channel = Magick::BlackChannel;
  29         else if (!strcmp(_channelName, "Opacity Channel"))      channel = Magick::OpacityChannel;
  30         else if (!strcmp(_channelName, "Matte Channel"))        channel = Magick::MatteChannel;
  31         Magick::Quantum black_point = Magick::Color::scaleDoubleToQuantum(_black_point / 100.0);
  32         Magick::Quantum white_point = Magick::Color::scaleDoubleToQuantum(_white_point / 100.0);
  33         image->levelChannel(channel, black_point, white_point, _mid_point);
  34 }
  35
  36 void
  37 LevelChannel::refreshParameters(Inkscape::Extension::Effect* module) {
  38         _channelName = module->get_param_enum("channel");
  39         _black_point = module->get_param_float("blackPoint");
  40         _white_point = module->get_param_float("whitePoint");
  41         _mid_point = module->get_param_float("midPoint");
  42 }
  43
  44 #include "../clear-n_.h"
  45
  46 void
  47 LevelChannel::init(void)
  48 {
  49         Inkscape::Extension::build_from_mem(
  50                 "<inkscape-extension xmlns=\"" INKSCAPE_EXTENSION_URI "\">\n"
  51                         "<name>" N_("Level (with Channel)") "</name>\n"
  52                         "<id>org.inkscape.effect.bitmap.levelChannel</id>\n"
  53                         "<param name=\"channel\" gui-text=\"" N_("Channel:") "\" type=\"enum\" >\n"
  54                                 "<_item value='Red Channel'>" N_("Red Channel") "</_item>\n"
  55                                 "<_item value='Green Channel'>" N_("Green Channel") "</_item>\n"
  56                                 "<_item value='Blue Channel'>" N_("Blue Channel") "</_item>\n"
  57                                 "<_item value='Cyan Channel'>" N_("Cyan Channel") "</_item>\n"
  58                                 "<_item value='Magenta Channel'>" N_("Magenta Channel") "</_item>\n"
  59                                 "<_item value='Yellow Channel'>" N_("Yellow Channel") "</_item>\n"
  60                                 "<_item value='Black Channel'>" N_("Black Channel") "</_item>\n"
  61                                 "<_item value='Opacity Channel'>" N_("Opacity Channel") "</_item>\n"
  62                                 "<_item value='Matte Channel'>" N_("Matte Channel") "</_item>\n"
  63                         "</param>\n"
  64                         "<param name=\"blackPoint\" gui-text=\"" N_("Black Point:") "\" type=\"float\" min=\"0.0\" max=\"100.0\">0.0</param>\n"
  65                         "<param name=\"whitePoint\" gui-text=\"" N_("White Point:") "\" type=\"float\" min=\"0.0\" max=\"100.0\">100.0</param>\n"
  66                         "<param name=\"midPoint\" gui-text=\"" N_("Gamma Correction:") "\" type=\"float\" min=\"0.0\" max=\"10.0\">1.0</param>\n"
  67                         "<effect>\n"
  68                                 "<object-type>all</object-type>\n"
  69                                 "<effects-menu>\n"
  70                                         "<submenu name=\"" N_("Raster") "\" />\n"
  71                                 "</effects-menu>\n"
  72                                 "<menu-tip>" N_("Level the specified channel of selected bitmap(s) by scaling values falling between the given ranges to the full color range.") "</menu-tip>\n"
  73                         "</effect>\n"
  74                 "</inkscape-extension>\n", new LevelChannel());
  75 }
  76
  77 }; /* namespace Bitmap */
  78 }; /* namespace Internal */
  79 }; /* namespace Extension */
  80 }; /* namespace Inkscape */